Estimating the Vibration Fatigue Life of Quad Leaded Surface Mount Components

[+] Author and Article Information
D. B. Barker, Y. S. Chen, A. Dasgupta

CALCE Electronics Packaging Research Center, University of Maryland, College Park, MD 20742

J. Electron. Packag 115(2), 195-200 (Jun 01, 1993) (6 pages) doi:10.1115/1.2909317 History: Received April 12, 1993; Online April 28, 2008


This paper discusses the assumptions and details of the fatigue life calculations required to predict the fatigue life of quad leaded surface mount components operating in a vibration environment. A simple approximate stress analysis is presented that does not require complex finite element modeling, nor does it reduce the problem to a simple empirical equation or rule of thumb. The goal of the new method is to make PWB vibration solder joint reliability information available to the designer as early as possible and in an easily understood and implemented manner.

Copyright © 1993 by The American Society of Mechanical Engineers
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